Roller-bearing



(No Model.) v

G. C. TWYMAN. ROLLER BEARING.

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UNITED STATES @PATENT OFFICE.

GooDLoE c. TWYMAN, or BOWLING GREEN, KENTUCKY.

ROLLER-BEARING.

SPECIFICATION forming part of `Letters Patent No. 564,127, dated July14, 1896.

` Application iiled October 4, 1895. Serial No. 564,633. (No model.)

To all whom it may concern:

Beit known that I, GOODLCE C. TWYMAN, a citizen of the United States,residing at Bowling Green, in the county of Varren and State ofKentucky, have invented certain new and useful Improvements inRoller-Bearings; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to improvements in roller-bearings; and the objectsin view are to produce a cheap and simple construction of bearing ofthis type, the same being designed for ready application to the spindlesof vehicles, machinery, railway coaches, zc., whereby friction may beaccordingly reduced.

Various other objects and advantages of the invention will hereinafterappear, and the novel features thereof will be particularly pointed outin the claims.

Referring to the drawings, Figure l is a vertical longitudinal sectionalview of a rollerbearing constructed in accordance with my invention, thesame being shown in eonnec- Fig. 2 is a detail in plan of one of theroller-sections. Fig. 3 is a transverse section of the same. Fig. 4 is atransverse section of Fig. l. Fig. 5 is a detail of the outer tubularsleeve. Fig. is a detail in elevation of the outer hanged spindle-nut.

Like numerals of reference indicate like parts in all the figures of thedrawings.

For the purpose of illustration I have shown my improved bearing inconnection with an ordinary axle and iron hub, such as is employed inordinary portable machinery for farm use, &c. but it will be understoodthat,

as before stated, the invention is equally applicable to all kinds ofmachinery, shafting, railway-coaches, doc., and is therefore not limitedto the use shown.

l designates an ordinary iron axle, at the outer end of which is locatedthe reduced spindle 2, which may be either tapered or cylindrical, asshown. At the inner end of the spindle is formed the xed collar 3, andat the outer end of the spindle is the threaded portion 4, all of theusual formation.

Slipped over and tightly fitting the spindle 2 is the inner tubularfixed sleeve 5, said sleeve having formed at its inner end the annularflange 6, designed to abut against the collar 3 of the spindle andterminating at its outer end opposite the threaded portion of saidspindle.

mental heads 8, so that the latter are out of contact with the lsurfaceof the inner fixed tubular sleeve 5. Any number of these rollersectionsmay be employed, and the same may be varied in their construction, ifdesired. Four of them in the present instance constitute a setand thesame are assembled about the sleeve 5, as shown. These roller-sectionsare of such length as to terminate short of the outer end of the sleeve5, which latter at said end is threaded, as shown, for the reception ofa nut ll of preferably slightly greater diameter than theroller-sections 6 when assembled. It is Vbetween this nut and the iiange6 of the sleeve 5 that the rollersections are loosely confined-loosely,for the reason that the nut l1 does not bind thereagainst-so that notonly are the rollers of each section free to revolve in their frames,but the entire sections are likewise free to revolve about the sleeve 5,and this, too, in the same manner as if the rollers were all journaledin one cylindrical common frame.

Loosely surrounding the assembled rollersections, between yet out ofcontact with the nut 11 and flange (i of the inner sleeve 5, is theouter tubular revoluble sleeve l2, the same terminating at its outer endabout flush with the roller sections, and being externally threadedthereat. An angular flange 13 is formed at the inner end of the sleeve12, the same taking over the iiange 6 of the inner sleeve and the fixedcollar 3 of the spindle IOO and countersunk in the inner end of the hub1i, which latter is bored out to tightly and immovably fit upon thesleeve 12, beyond which sleeve the front end of the hub extends.

Located on the outer end of the outer movable sleeve l2 is a binding-nutl5, the same serving to clamp the hub between it and the angular flange13 of the sleeve 12.

1G designates a spindle-nut, the same being threaded on the outer end ofthe spindle 2 beyond the nut 11 and provided on its inner face with anannular flange 17, which is out of contact with yet loosely encirclesthe nut l1 by reason of the fact that it abuts against the outerprojecting end of the fixed sleeve 5, which, as shown, is slightlybeyond the nut li, and also, by reason thereof, the face of the flangel? is maintained out of contact with the outer face of the nut 15, whichlatter it will be apparent revolves with the hub and the sleeve l2, uponwhich it is mounted.

From the foregoing description, in connection with the accompanyingdrawings, it will be obvious that I have produced a rollerbearing ofcheap and simple construction, whose parts are few, easily manufacturedand assembled, and which will perform its office of reducing frictionbetween moving parts in a highly efficient manner; also, that byremoving thc two nuts l1 and 16 access can be directly had to theinterior of the bearing for cleansing and repair purposes.

Although I have shown the invention applied to the metal wheel of anagricultural machine, yet it will be apparent that I do not limit myinvention to such application, but hold that the invention may be asadvantageously used in connection with vehicles of any kindpulleys andshafting and farm and other portable machinery in general.

IIaving described my invention, what I claim is 1. The combination witha shaft or axle, a sleeve secured immovably thereon, one end thereofbeing provided with a flange and the opposite end threaded, and a nutlocated on said latter end, of a series of antifriction-roll ersarranged about the sleeve between the flange and nut and substantiallyagreeing in length with the distance between the same, an lexternalsleeve shorter than the first and of a substantially uniform borethroughout its length loosely surrounding the antifriction-rollersbetween said nut and flange, a hub mounted rigidly on the externalsleeve and abutting against the flanged end of the same, and a nutlocated on the outer end of the external sleeve and binding the hubagainst the flange and overlapped and retained by the nut of the innersleeve, substantially as specified.

2. The combination with the shaft or axle, the sleeve rigidly mountedthereon and terminating at one end in an annular flange and having theopposite end threaded and a nut thereon, of a series ofscgmentally-curved roller-carrying frames located and free to revolvebetween the nut and flange and around the sleeve, said framessubstantially agree ing in length with the distance between the nut andflange, an outer sleeve shorter than the first and overlapped by saidnut, and a hub mounted rigidly thereon, substantially as specified.

3. The combination with the axle terminating in the spindle providedwith the fixed collar and the outer threaded end, the sleeve rigidlymounted on the spindle and terminating and threaded in rear of the endof the spindle, and a nut on the outer end of the sleeve, ofantifriction-rollers located between the nut and collar ofthe axle andadapted to revolve around the sleeve, an external sleeve surrounding therollers and of less length than the inner sleeve, of uniform bore andadapted to revolve between the nut and collar and confined by the nut,said outer sleeve being shorter than the first sleeve and provided atits outer end with threads and at its inner end with a collar-inclosingflange, a nut on the outer end of the outer sleeve, a hub clampedbetween the same and the flange of the outer sleeve, and a nut on theend of the spindle, substantially as specified.

4. The combination with the axle having the collarS and the outerthreaded end, an inner sleeve shorter than. the spindle and having anouter threaded end and an inner flanged end, and the series of frameshaving heads 8 and connecting-bars 9, and the rollers 10 journaled inthe heads, of the outer sleeve surrounding the rollers and looselyconfined between the flange and nut, said outer sleeve being shorterthan the first and having its outer end threaded and its innerendprovided with the collarinclosing flange i3, the hub located on theouter sleeve, the nut on the latter and clamping the hub against theflange 13, and the socket-nut 1G threaded on the outer end of thespindle and surrounding the nut of the inner sleeve, substantially asspecified.

In testimony whereof I affix my signature in presence of two witnesses.

GOODLOE C. TWYMAN.

Vitnesses:

C. J. BLooDWoRTH, S. J. BRADFORD.

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